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United States Patent | 6,173,484 |
McGlinchy ,   et al. | January 16, 2001 |
A system for fabricating muntin bars from sheet material. Sheet material in the form of thin ribbon stock is fed to a first forming station including a punching mechanism that punches the ribbon stock at a precisely predetermined location. The ribbon stock is delivered from the first forming station to a second forming station in the form of a rolling mill. The stock passes through a succession of forming rolls to produce a tube having a desired cross-sectional shape. The tube is delivered from the second forming station to a third forming station including a severing apparatus that severs the tube at a precisely predetermined location to produce a muntin bar. After severing, the muntin bar is engaged by a conveyor and moved to a desired location.
Inventors: | McGlinchy; Timothy Bryan (Twinsburg, OH); Khalfoun; Mohamed C. (Cleveland Heights, OH); Grismer; John Louis (Cuyahoga Falls, OH); Gardner; Michael J. (Hudson, OH) |
Assignee: | Glass Equipment Development, Inc. (Twinsburg, OH) |
Appl. No.: | 797031 |
Filed: | February 7, 1997 |
Current U.S. Class: | 29/417 |
Intern'l Class: | B23P 017/00 |
Field of Search: | 29/417,469.5,879.35,414,791,792,799,897,897.3,897.31,897.34,412 72/700,181,178 52/204.61,664,667,668 |
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